In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
Q: passage: In mathematics, and more specifically set theory, the empty set or null set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero. Some axiomatic set theories ensure that the empty set exists by including an axiom of empty set; in other theories, its existence can be deduced. Many possible properties of sets are vacuously true for the empty set.
 question: is the empty set an element of the set containing the empty set?
A: 
No